Lucy hooker



(No Model.)

L. HOOKER. INGANDESOENT GAS LIGHT TASSEL.

No. 605,960. Patented June 21, 1898.

Q vi/bweowo awe/whoa this invention.

ATENT Fries,

LUCY HOOKER, OF SYDNEY, NEW SOUTH ALES.

INCANDESCENT GAS- LIG HT TASSEL.

SPECIFICATIONforming part of Letters Patent No. 605,960, dated June 21, 1898.

Application filed September 24-, 1897- Serial No. 652,915. (No model.)

To all whom it may concern:

Be it known that I, LUCY HOOKER, a citi zen of New South Wales, residing at Sydney, in the Colony of New South, WVales, have invented certain new and useful Improvements in Incandescent Gas-Light Tassels; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in gas-burners, and more particularly to incandescent attachments therefor; and it consists in the novel construction, arrangement, and preparation of the parts, as hereinafter set forth. 1

In the drawings, Figure l is a side elevation of a Bunsen gas-burner provided with Fig. 2 is a vertical section of the invention. Fig. 3 is a perspective view of the invention.

I'Ieretofore the various attachments which have been used on gas-burners and which on becoming heated have arrived at incandescence have generally been subjected to the objection that in their structure they are delicate and easily destroyed bya jar or blow on the fixture to which they are attached. It is the object of the present invention to overcome these objections while providing a larger surface which upon becomingheated becomes incandescent, and thereby produces greater brilliancy and volume of light.

The attachment as constructed by me is formed, preferably, in the shape of a flattened tassel, as shown in the drawings. It is constructed by forming a small circular disk A from asbestos or other suitable material nondestructible by heat. While serving to support the threads of the tassel, this disk also serves the additional purpose of a deflector or disburser of the vertically-ascending heatrays. By so doing the heat-rays are prevented from rising in a direct line and column from the burner and are deflected laterally and downward among the threads of tassel, thereby to a great extent conserving and utilizing the heat for the purpose of raising the material to incandescence. The

shield A is covered with an envelop B, of linen, calico, or other suitable fabric, to which the threads are preferably constructed in the manner of a chain-stitch to render them stronger to resist the direct upward impact of the heat-raysfrom the burner D. In attaching the threads'to the envelop they are placed closely together, but without touching. When the attachment has been thus prepared, it is placed within a solution composed of the mixture of the materials andquantities herein set forth, as follows: one ounce of liquid acetate of magnesium, one dram of sulfate of chromium, and 2 drams of calcine magnesia. I

The same proportions as herein given for a smaller quantity of the solution are pre served in larger quantities.

The attachment is allowed to remain within the solution from one to two hours, when it will be thoroughly saturated. It is then removed and dried. When dried, it is combed out or the threads thereof separated from one another. It is now in readiness to be placed in position over the burner D.

In mounting this attachment upon the burner D there is no necessity of inclosing it within a chimney or globe to protect it from drafts of air for the reason that the material which causes the incandescence is thoroughly absorbed by the fiber of the threads of the tassel, which is sufficiently strong to main tain them from being broken by such movement.

To attach the device, I have provided a rod E, which is mounted in a suitable guide F, attached to the side .of the burner D. v The guide F is provided with a vertical perforation to receive the rod E and also with the set-screwF for binding the rodin position. The rod E is given a suitable form at the top to allow the tassel to hang within it without the threads thereof coming in contact with the rod, and it is extended over the top of, to the center of, the disk where the end is turned upward to form the hook E.

The disk A may be provided at this time or before the envelop B is placed on it with a small ring or eyelet A, the ends of which or the loop of which is secured firmly to the said disk. This attachment when cool may thus be readily removed and replaced by lifting it off the hook E. In its operation, the heat is generated by the Bunsen burner D, and rising and striking upon the disk A, as before stated, deflects the heat-rays laterally and downward and finally escapes upward around the outer edge of the disk A, in doing which, however, the threads of the tassel have become heated to incandescenee, and thereby caused to produce light, the volume of which is proportionate to the amount of material which is incandescent. By reason LUCY HOOKER.

Witnesses:

ROBERT MALLENsoN, W ALTER LYMQNT. 

